What are the advantages of outdoor surface-mounted LED display with respect to in-line type

With the continuous progress of LED display technology and people's increasing demand for viewing, surface-mount packaging products have begun to move toward outdoor applications, and outdoor surface-mounted LED displays have become more popular. However, this trend has caused people's hot debates because of many quality events. In the end, whether the surface mount packaging products can replace the LED lamps for outdoor LED display, what technical problems need to be solved, this article will provide readers with a solution, if there are deficiencies, please correct me.

In the past few years, almost all outdoor LED display devices use in-line elliptical red, green, and blue LED devices. In recent years, outdoor full-color LED displays with pixel pitches of 8 mm to 16 mm are gradually emerging. And get a wide range of applications.

First, a wide perspective. The outdoor surface-mount full-color screen not only has a wide viewing angle of more than 110 degrees in the horizontal direction, but also has a wide viewing angle of more than 110 degrees in the vertical direction. This has particular advantages in some application places, such as building screens, outdoor LED displays suspended from high altitudes. Need a wider perspective to show better advertising effectiveness.

Second, the light is good. Red, green and blue elliptical LED match consistency of three brightness at different angles is a very difficult indicator, and full-color SMD design structure for the three-in-one structure, red, green and blue all three chips In a bracket bowl cup, the matching consistency of the three brightnesses of red, green, and blue is highly consistent at different angles, so that the outdoor full-color surface-mounted LED display has a good consistency in brightness at any angle and can achieve even better results. Good color realistic effect.

Third, mixed light is good. Because the design structure is three-in-one and the three chips are very close together, light is mixed in the same bracket bowl instead of three separate oval LEDs, so the red, green, and blue light mixing effect is better than the straight-line oval LED. Screen, especially suitable for close-up viewing.

Fourth, high contrast. Because of the three-in-one design structure, the full-color SMD is small in size, so the light emitting area is small and the black area is large, which improves the contrast of the LED display.

Fifth, automated production. Surface-mounted LED can use automatic placement machine for automated patching, which has high production efficiency. The circuit design of the outdoor surface-mounted LED display module can realize the combination of the light board and the driver board, which reduces the cost, improves the reliability, and improves the production efficiency. In addition, the automated patch production can also improve the vertical accuracy of the SMD on the circuit board and overcome the vertical accuracy problem of the in-line elliptical LED on the circuit board, thereby ensuring better optical effects.

Sixth, light weight box. The aluminum alloy material box structure design is very light; and the appearance is not easy to deformation and assembly is convenient and smooth. Suitable for rental companies, car screens, mobile media use; Post installation or wall installation to reduce the pressure of the screen on the steel structure.

Seven, no glue. The colloids filled in the traditional outdoor screen module will gradually deteriorate under the sun, rain and ultraviolet rays, and the properties of the colloid will change and break off, causing the circuit board and the LED to lose the protective layer, even after a long time. After the thermal expansion and contraction, the waterproof effect cannot be achieved, and the glue enters the screen through the gap, which has corrosion effect on the PCB board, and affects the life and stability of the entire screen; if it is a surface-mount outdoor three-in-one adopts the glue filling process, Because the lamp legs are too short and the glue is too thin, the consequences are even more serious.

In the past, because the brightness of the surface-mount LED was low, together with the waterproof, moisture-proof, and UV-resistant features, the outdoor full-color display was generally the world of in-line LED. SMD full-color LED displays can only be used in large numbers indoors. Recently, with the advancement of LED chip technology and LED packaging technology, the brightness and protection level of SMD have been able to meet the needs of outdoor applications and have achieved faster application. Text / Shenzhen LED base

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